Description
ASTM D445 and D446 viscometer, size No. 0c, is a calibrated three-legged capillary instrument for kinematic viscosity measurement of transparent liquids in the range 0,6–3 mm²/s. With capillary constant K 0,003 and an approximate length of 283 mm, it is adjusted for use under ASTM D445/D446 as well as ISO 3104 and ISO 3105. The three-legged geometry supports stable mounting and clear observation of the meniscus during efflux timing on clear fluids. This model is stated as identical to sample SI No. 501.03, giving laboratories a defined reference match for method alignment and instrument selection. Supplied as 1 pc with a net weight of 0,08 kg, the calibrated unit from manufacturer Witeg is intended for transparent liquids in routine analytical and quality-control viscosity work. The combination of size No. 0c, constant K 0,003 and the 0,6–3 mm²/s window helps keep low-viscosity samples within the recommended measuring band. Laboratories following ASTM or ISO capillary procedures can deploy this adjusted instrument directly in a suitable temperature-controlled bath without altering the stated geometric or calibration parameters.
This article is part of Viscometers, in Density & viscosity measurement.
Key features
- Pack size: 1 pc
- Standards: ASTM D445, D446, ISO 3104, ISO 3105
- Size number: No. 0c
- Constant K: 0,003
- Measuring range: 0,6–3 mm²/s
- Length: approx. 283 mm, three-legged
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Questions about Viscosimeter ASTM D445 D446 0,6-3,0mm²/s
What is this article?
Viscosimeter ASTM D445 D446 0,6-3,0mm²/s is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Viscometers, inside Density & viscosity measurement, in Lab instruments.
A capillary viscometer times the flow of a liquid through a tube. A rotational viscometer twists a spindle in the liquid. Both need a stated temperature. Kinematic and dynamic viscosity are different numbers. The capillary size has to put the flow time in the range the method allows.
Density is mass divided by volume. A hydrometer floats at a depth that depends on the density of the liquid. A pycnometer is a vessel of known volume that is weighed full. Viscosity is the resistance to flow. A capillary viscometer times how long a volume takes to fall through a tube. Both measurements need a stated temperature, because liquids change density and viscosity as they warm. The units trace to the BIPM and to NIST.
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The category is Density & viscosity measurement. The sub-category is Viscometers. The catalogue is Lab instruments.
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